Ambulation aid



FIG. 1 is an isometric view of an ambulation aid.

FIG. 2 is a front view of the ambulation aid.

FIG. 3 is a rear view of the ambulation aid.

FIG. 4 is a first side view of the ambulation aid.

FIG. 5 is a second side view of the ambulation aid.

FIG. 6 is a top view of the ambulation aid.

FIG. 7 is a bottom view of the ambulation aid.

FIG. 8 is an isometric view of the ambulation aid; and,

FIG. 9 is a rear isometric view of the ambulation aid.

The features shown in broken lines form no part of the claimed design. 

CLAIM The ornamental design for an ambulation aid, as shown and described. 